Howard Hughes Medical Institute researchers have found that Hirschsprung disease, one of the most common genetic disorders, is caused by a defect that blocks neural stem cells from forming nerves that control the lower intestine.
Hirschsprung disease occurs in one in 5,000 live births and causes a potentially fatal disorder that prevents the proper transport of food through the gut. The new findings suggest that it might one day be possible to correct the disease by transplanting neural ste
Also found in humans – could explain why some get sicker than others
University of Michigan scientists have discovered a gene that turns a chronic inherited neurological disorder – which produces tremor and muscle weakness in laboratory mice – into a lethal disease that paralyzes and kills them within a few weeks of birth.
Called Scnm1 for sodium channel modifier 1, the gene is one of a small group of recently discovered modifier genes that interact with other genes to alte
Global warming and pollution are among the modern-day threats commonly blamed for decline of coral reefs, but new research shows the downfall of those resplendent and diverse signatures of tropical oceans actually may have begun centuries ago.
According to a paper set to appear Friday (8/15) in the journal Science, the downward spiral started when people first began killing off reef-frequenting large fish, turtles, seals and other top predators or herbivores – a process that started thousands of
Evolutionary biologists have developed a wide range of techniques to reconstruct the evolutionary history of particular groups of plants and animals. These techniques reveal much about the diverse patterns of evolution of life on earth, but few generalities have emerged, leading many scientists, such as the late Stephen Jay Gould, to conclude that each group of living things evolves in its own idiosyncratic manner. But now biologists at Washington University in St. Louis have proposed a general patte
In a recent study that examined perceptions of gays and lesbians by others, Kansas State University psychology professor Richard Harris asked one group of people to think of a positive gay or lesbian character from a television show or movie and asked another group to think of a negative gay or lesbian character from media. A third group, the control group, was asked to think about an unmarried media character, but sexual orientation was not mentioned. All three groups were then asked to complete a p
A paper in Nature today (14 August) reveals that certain ocean viruses invade the cells of cyanobacteria (known as blue-green algae) and use the energy the cells produce through photosynthesis for their own purposes.
Researchers at the University of Warwick, led by Professor Nick Mann, have shown that when the viruses infect the bacteria they inject their genetic material into their host, a transfer that may be temporarily advantageous to the host.
Part of the injected DNA codes fo
Thanks to ESA satellites, an international team including UNIGE researchers has detected a giant eruption coming from a magnetar, an extremely magnetic neutron star. While ESA’s satellite INTEGRAL was observing…
Superradiant atoms can help us measure time more precisely than ever. In a new study, researchers from the University of Copenhagen present a new method for measuring the time interval,…
New publication reports record electron temperatures for a small-scale, sheared-flow-stabilized Z-pinch fusion device. In the nine decades since humans first produced fusion reactions, only a few fusion technologies have demonstrated…
Traditional non-aqueous lithium-ion batteries have a high energy density, but their safety is compromised due to the flammable organic electrolytes they utilize. Aqueous batteries use water as the solvent for…
LMU researchers have developed a method to determine how reliably target proteins can be labeled using super-resolution fluorescence microscopy. Modern microscopy techniques make it possible to examine the inner workings…
Weill Cornell Medicine investigators have uncovered a way to unleash in blood vessels the protective effects of a type of fat-related molecule known as a sphingolipid, suggesting a promising new…
Scientists develop novel liquid metal alloy system to synthesize diamond under moderate conditions. Did you know that 99% of synthetic diamonds are currently produced using high-pressure and high-temperature (HPHT) methods?[2]…
Nebraska researcher Eric Markvicka gets NSF CAREER Award to pursue manufacture of novel materials for soft robotics and stretchable electronics. Engineers are increasingly eager to develop robots that mimic the…
Research team develops new idea to improve the properties of ultra-thin materials. Magnetic two-dimensional materials consisting of one or a few atomic layers have only recently become known and promise…
…for enhanced microscopy analysis. Observing individual cells through microscopes can reveal a range of important cell biological phenomena that frequently play a role in human diseases, but the process of…
… a step towards the computing of the future. An international research team led by scientists from the CNRS1 has discovered that the magnetic nanobubbles2 known as skyrmions can be…
Soft skin coverings and touch sensors have emerged as a promising feature for robots that are both safer and more intuitive for human interaction, but they are expensive and difficult…